DC Inverter U-match Series Duct Type Unit
19
4.4.2 Additional Charge
Refrigerant suitable for a piping length of 7.6m (25feet) is charged in the
outdoor unit at the factory. When the piping is longer than 7.6m (25feet), additional
charging is necessary.
For the additional amount, see Table 4.4.
Table 4.4
Item
Model
Additional Refrigerant Amount for Extra Pipe
18k
33g per 1.5m (1.2 ounce per 5 feet )
24k
68g per 1.5m (2.4 ounce per 5 feet )
30k~48k
81g per 1.5m (2.9 ounce per 5 feet )
When the height difference between the indoor unit and outdoor unit is larger
than 10m (32-4/5feet), an oil bend should be employed for every 6m (19-2/3 feet).
Fig. 4.20
4.5 Installation of the Drain Hose
(1) It is not allowed to connect the condensate drain pipe into waste pipe or
other pipelines which are likely to produce corrosive or peculiar smell to
prevent the smell from entering indoors or corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to
prevent rain water from pouring in and cause property loss or personal
injury.
(3) Condensate drain pipe should be connected into special drain system for air
conditioner.